package 二叉树;

import java.util.List;

class Node2 {
    public int val;
    public List<Node2> children;

    public Node2() {
    }

    public Node2(int _val) {
        val = _val;
    }

    public Node2(int _val, List<Node2> _children) {
        val = _val;
        children = _children;
    }
};
